76 PHYTOPHAGA. 



the species, of which neither figures nor descriptions can in all instances give an 

 adequate idea. 



1. Chlamys amoena. (Tab. V. fig. 4.) 



Chlamys amoena, Lacord. Mon. p. 655 1 . 

 Edb. Mexico 1 , Cordova (SalU). 



From C. pavonina this species is distinguished by its more elongate shape, different 

 presternum, and the ill-defined black basal patch of the elytra, as well as the three- 

 ridged pygidium. A Cordova specimen is figured. 



2. Chlamys pavonina. (Tab. II. fig. 23.) 



Chlamys pavonina, Lacord. Mon. p. 656 \ 

 Edb. Mexico \ (Salle). 



This species may be easily known by the well-defined black elytral spot ; it is closely 

 allied to the preceding species ; but the differences are pointed out by Lacordaire, and 

 consist principally of the differently-shaped presternum and metasternum. I find that 

 Lacordaire makes no mention of a tubercle near the suture behind the middle of the 

 elytra, very distinctly visible in the specimens which I have examined. One of M. 

 Salle's specimens is figured. 



3. Chlamys cinerea. 



Chlamys cinerea, Lacord. Mon. p. 659 l ; Dejean, Cat. 3rd ed. p. 440. 

 Edb. Mexico 1 , Cordova, Vera Cruz (Salle). — Colombia 1 ; Peeu 1 . 



As will be seen above, this species has a wide distribution, and is contained in most 

 collections. The general colour of this insect is leaden, closely covered with whitish 

 hairs ; but some specimens have a violaceous tint, and the elytra are totally devoid of 

 the usual protuberances ; but a very narrow transverse tubercle is generally visible 

 below the middle near the suture. The posterior legs in the male insect protrude 

 beyond the abdomen in this as in most other species of Chlamydinse, showing in that 

 respect an analogy with the Cryptocephalinse. 



4. Chlamys sextuberculata. (Tab. 11. fig. 24.) 



Chlamys sextuberculata, Jacoby, P. Z. S. 1879, p. 775 x . 

 Hab. Mexico, Juquila (Salle) ; Guatemala, Capetillo, Duenas (Champion x ). 



Although this species is very closely allied to C. cinerea, it is well distinguished by 

 its bright metallic blue colour and the stronger punctuation of its elytra. The specific 

 name of sextuberculata is scarcely appropriate, as the three tubercles, although more 



